Thanks, but the table doesn't exist yet. Also, I need
to estimate the space needs for a column of a numeric
datatype, not the row itself.
- John Lewis <jlewis_at_punchnetworks.com> wrote:
> Oracle stores the avg_row_length in all_tables view.
> Use analyze_schema to get the most recent numbers.
>
> -----Original Message-----
> Sent: Monday, May 21, 2001 12:12 PM
> To: Multiple recipients of list ORACLE-L
>
>
> Thanks for the info. I know about the VSIZE
> function,
> but "how" do I estimate the amount of space
> manually?
> What about negatives, fractional values, etc.? These
> all require differing amounts of space.
>
> Thanks again.
> Walt
>
>
>
> --- "Toepke, Kevin M" <ktoepke_at_cms.cendant.com>
> wrote:
> > Walter:
> >
> > You use the "VSIZE()" function. And you are right
> > about 10000 not taking the
> > same amount of size as 99999. 10000 uses 2 bytes
> and
> > 99999 uses 4.
> >
> > SQL> select vsize(10000), vsize(99999) from dual;
> >
> > VSIZE(10000) VSIZE(99999)
> > ------------ ------------
> > 2 4
> >
> > Kevin
> >
> > -----Original Message-----
> > Sent: Monday, May 21, 2001 1:56 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > Hi,
> >
> > How do I calculate the amount of physical space
> > required for storing a number? (i.e. NUMBER,
> > NUMBER(5), NUMBER(10,5), etc.) I believe Oracle
> uses
> > "2's compliment" for storing numbers. A value of
> > 10000
> > does not seem to take up the same amount of space
> as
> > 99999.
> >
> > TIA!
> > -wk
> >
> > __________________________________________________
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> > --
> > Please see the official ORACLE-L FAQ:
> > http://www.orafaq.com
> > --
> > Author: Walter K
> > INET: alden14004_at_yahoo.com
> >
> > Fat City Network Services -- (858) 538-5051
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> > --
> > Author: Toepke, Kevin M
> > INET: ktoepke_at_cms.cendant.com
> >
> > Fat City Network Services -- (858) 538-5051
> FAX:
> > (858) 538-5051
> > San Diego, California -- Public Internet
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>
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> __________________________________________________
> Do You Yahoo!?
> Yahoo! Auctions - buy the things you want at great
> prices
> http://auctions.yahoo.com/
> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.com
> --
> Author: Walter K
> INET: alden14004_at_yahoo.com
>
> Fat City Network Services -- (858) 538-5051 FAX:
> (858) 538-5051
> San Diego, California -- Public Internet
> access / Mailing Lists
>
> To REMOVE yourself from this mailing list, send an
> E-Mail message
> to: ListGuru_at_fatcity.com (note EXACT spelling of
> 'ListGuru') and in
> the message BODY, include a line containing: UNSUB
> ORACLE-L
> (or the name of mailing list you want to be removed
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> also send the HELP command for other information
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> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.com
> --
> Author: John Lewis
> INET: jlewis_at_punchnetworks.com
>
> Fat City Network Services -- (858) 538-5051 FAX:
> (858) 538-5051
> San Diego, California -- Public Internet
> access / Mailing Lists
>
> To REMOVE yourself from this mailing list, send an
> E-Mail message
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> also send the HELP command for other information
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Do You Yahoo!?
Yahoo! Auctions - buy the things you want at great prices
http://auctions.yahoo.com/
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Walter K
INET: alden14004_at_yahoo.com
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
San Diego, California -- Public Internet access / Mailing Lists
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Received on Mon May 21 2001 - 14:07:34 CDT
